one should do one"s best at all times!

one should do ones best at all times! one should keep one's word one should keep one's promise是什么意思? One should do one's best at all time请问这句话是什么意思. do one's do one's homework do one's 英语翻译do one's homework do one's homework是什么意思 dail to do one’s do one's homework是什么意思 翻译 do one`s homework 翻译 do one's homework One should always base one's opinions on facts. do one's best 中 one's 怎么用? do one's best和do one's homework中的do RT注意~我是问do one's的用法~ one,ones,one’s do one's a favor什么意思